US4248728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid scouring cleanser
Assignee: Diversey Corp Canada
•
Filing: 1979-02-28
•
Granted: 1981-02-03
•
Expires: 1999-02-28
Abstract
Abstract A paste type scouring cleanser containing colloidal magnesium aluminum silicate, alkali, optionally a bleach, zeolite, optionally an abrasive, a surfactant, and optionally sodium hexametaphosphate, all in aqueous dispersion.
Inventors
- 👤 Robert L. Puryear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:13
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/1286
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
213 words
A general purpose scouring cleanser in cream form consisting of: ______________________________________
Wt. %
______________________________________
Water, to make balance of 100%
Colloidal magnesium aluminum
silicate, about 1-5
Alkali, about 1-5
Sodium aluminum silicate, about
10-50
Abrasive, about 0-25
Chlorine-stable anionic
surfactant, about 0.5-2.0
Bleach (dry basis), about
0-2
Sodium hexametaphosphate, about
0-15
______________________________________ said colloidal magnesium aluminum silicate being a member selected from the group consisting of: hectorites, modified hectorites, smectites, montmorillonite, bentonite, volchonskoite, nontronite, beidellite, saponite, or sauconite; said alkali being sufficient to maintain the pH in the range of 11-14; said sodium aluminum silicate being a water insoluble crystallizing aluminosilicate ion exchange material of the formulas Na 12 [AlO 2 SiO 2 ] 12 xH 2 O wherein x is an integer of from about 20 to about 30; said abrasive being a member selected from the group consisting of quartz, pumice, pumicite, titanium dioxide, silica sand, calcium carbonate, zirconium silicate, diatomaceous earth, whiting, or feldspar, and having a particle size diameter ranging from about 1 to about 250 microns and a specific gravity of from about 0.5 to about 5.0; said bleach being a member selected from the group consisting of; sodium hypochlorite, potassium hypochlorite, monobasic calcium hypochlorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate, or N-chlorosulfamide.
Claim 2
Dependent Claim
213 words
A general purpose scouring cleanser in cream form consisting of: ______________________________________
Wt. %
______________________________________
Water, to make balance of 100%
Colloidal magnesium aluminum
silicate, about 1-5
Alkali, about 1-5
Sodium aluminum silicate, about
10-50
Abrasive, about 0-25
Chlorine-stable anionic
surfactant, about 0.5-2.0
Bleach (dry basis), about
0-2
Sodium hexametaphosphate, about
0-15
______________________________________ said colloidal magnesium aluminum silicate being a member selected from the group consisting of: hectorites, modified hectorites, smectites, montmorillonite, bentonite, volchonskoite, nontronite, beidellite, saponite, or sauconite; said alkali being sufficient to maintain the pH in the range of 11-14; said sodium aluminum silicate being a water insoluble crystallizing aluminosilicate ion exchange material of the formulas Na 12 [AlO 2 SiO 2 ] 12 xH 2 O wherein x is an integer of from about 20 to about 30; said abrasive being a member selected from the group consisting of quartz, pumice, pumicite, titanium dioxide, silica sand, calcium carbonate, zirconium silicate, diatomaceous earth, whiting, or feldspar, and having a particle size diameter ranging from about 1 to about 250 microns and a specific gravity of from about 0.5 to about 5.0; said bleach being a member selected from the group consisting of; sodium hypochlorite, potassium hypochlorite, monobasic calcium hypochlorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate, or N-chlorosulfamide.
Claim 3
Dependent Claim
53 words
Cleanser according to claim 1 consisting of ______________________________________
Wt. %
______________________________________
Water, about 40-65
Colloidal magnesium aluminum
silicate, about 1-5
Sodium metasilicate anhydrous,
about 1-5
Zeolite 4A, about 10-50
Calcium carbonate, about
0-25
Sodium lauryl ether sulfate,
about 0.5-2.0
Sodium hypochlorite, 5.25 wt. %
aqueous solution, about
0-40
Sodium hexametaphosphate, about
0-15
______________________________________
Claim 4
Dependent Claim
44 words
Cleanser according to claim 1 consisting of: ______________________________________
Wt. %
______________________________________
Water, to make balance of 100%
Colloidal magnesium aluminum silicate, about
3.5
Alkali, about 1.5
Sodium aluminum silicate, about
10.0
Abrasive, about 20.5
Anionic surfactant, about
1.0
Bleach (dry basis), about
1.0
______________________________________
Claim 5
Dependent Claim
49 words
Cleanser according to claim 3 consisting of: ______________________________________
Wt. %
______________________________________
Water about 43.5
Colloidal magnesium aluminum silicate, about
3.5
Sodium metasilicate, anhydrous, about
1.5
Zeolite 4A, about 10.0
Calcium carbonate, about
20.5
Sodium lauryl ether sulfate, about
1.0
Sodium hypochlorite (5.25 wt. % aqueous
solution), about 20.0
______________________________________
Claim 6
Dependent Claim
37 words
Bleach-free cleanser according to claim 2 consisting of: ______________________________________
Wt. %
______________________________________
Water, about 63.5
Colloidal magnesium aluminum silicate, about
3.5
Alkali, about 1.5
Sodium aluminum silicate, about
10.0
Abrasive, about 20.5
Anionic surfactant, about
1.0
______________________________________
Claim 7
Dependent Claim
35 words
Cleanser according to claim 5 in which the alkali is anhydrous sodium metasilicate; the sodium aluminum silicate is zeolite 4A; the abrasive is finely divided calcium carbonate; and the surfactant is sodium lauryl ether sulfate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |